military provided back-up to the fbi team on the ground. what happened there, who may be responsible and what the obama administration has said about it is a growing issue in the presidential campaign. and after a syrian shell landed in turkey on wednesday killing five women on impact and then turkey fired back, the turkish parliament today approved possible broader military action against syria. this is one to watch. turkey says this is not a declaration of war, but a warning that turkey will defend itself. syria has now apologized nota y notably, but this incident has raised grounded fears of a wider war. amon is on the ground tonight in turkey. we've put some of his reporting on our website tonight. >>> still ahead as we continue, new research this evening about a chemical we all come in contact with that has raised questions before. this time, the concern is about mothers and their babies. and later, an extraordinary view of the world like we've never seen it before. sweetie, you have to scrub it first. no you don't, honey. yes, you do!